<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item" v-for="item in list" :key="item.id" @click="handleCityClick(item.name)">
            {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="hasNoData">
             没有找到匹配数据
        </li>
      </ul>
    </div>
  </div>
</template>

<script>
import { mapMutations } from 'vuex'
import Bscroll from 'better-scroll'
export default {
  name: "CitySearch",
  props:{
      cities:Object
  },
  data () {
      return {
          keyword: '',
          list:[],
          timer:null
      }
  },
  computed: {
      hasNoData () {
        return !this.list.length
      }
  },
  watch:{
    keyword (){
        if(this.timer){
            clearTimeout(this.timer)
        }
        if(!this.keyword){
          this.list = []
          return
        }
        this.timer = setTimeout(() => {
           const result = []
           for (let i in this.cities){
             this.cities[i].forEach((value) => {
                 if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1){
                    result.push(value)
                 }
             })
           }  
           this.list = result
        },100)
    }
  },
  methods:{
      handleCityClick (city){
             this.$store.commit('changeCity',city)
        
  
         }
  },
  mounted (){
    this.scroll = new Bscroll(this.$refs.search)
  }
}
</script>

<style  scoped>
.search {
  height: 36px;
  background: #00bcd4;
  padding: 0 10px 5px 5px;
}
.search-input {
  height: 30px;
  line-height: 30px;
  width: 100%;
  text-align: center;
  border-radius: 5px;
  outline: none;
  border: none;
  color: #666;
  padding: 0 5px;
  box-sizing: border-box;
}
.search-content{
    z-index: 10;
    overflow: hidden;
    position: absolute;
    top:80px;
    left: 0;
    right:0;
   
    height: 800px;
    width:100%;
    left:0;
    margin-left:-30px;
}

.search-item{
    line-height:31px;
    color:#666;
    background:#fff;
    list-style-type: none;
    
}
</style>